Oklahoma Annulment Laws

Grounds
Incapable of contracting due to lack of age or understanding; cohabitation after incapacity ceases is defense

Limitations
N/A

Legitimacy of Children
Issue of annulled marriage are legitimate

Prohibited Marriages
Between ancestor and descendant, stepparent and stepchild, uncle and niece, aunt and nephew, brother and sister, first cousins (but will recognize marriage of first cousins married in state where it is legal); same sex